Oregon's gas prices for Memorial Day weekend were the highest ever for the holiday, while the national average was the highest in four years, according to AAA.
This week, the national average for regular gasoline slipped four cents to $4.49 a gallon.
The Oregon average rose four cents to $5.32 a gallon.
AAA said crude oil prices moved lower last week as the U.S. and Iran seemed closer to a deal to end the war; but, oil prices were up again Tuesday after U.S. strikes on Iran.